Colter



H. R. TRAPHAGEN.

coLTER.

APPLICATION FILED JUNE 16. l9l9.

1,421,111; I PatentedJune27,1922.

Has-B TRAIPEAGEN; QR Q KEQED uscle INGRAM GOMPANY, r owman ILLIlNQ ae 2 :0 fn a a-Bamrpro e ties? QE ILlxINQIfiw 1 sweep Application filed June 16,

T 0 allwhom it may concern: Be it known. that I, HA RYIB, IRAll-IA mama, a citizen of the: United States, resid; ing at Rockford, inthe county of Willnebag0 and, t t o lli s, a inven ed era new nd useful, Imp em nt in. C01;- ters, t which the following is agispecifica tion. l

T i in ntio p r a ng n gener l a t a r ul ural ma in y,.- as mor P Fti .r lar r fe ence to cQlt r-s, Su a ar usedwith pl s in h el v known 'Itis com mon practice to support a colter infront of a plow body through theqagency of a 'colt r m n bra ke the t being ad justably attached to the plow frame'and capable of adjustment. thereontO Qhange the position of the colter with respect to t-he plow body. It is Well recognized that. improp P s t o ing h ter wi h spe to'the plow body is inimical tolrgood plow ing, and it is often found diflicultto se ire andmaintain a colter in the desired positi-en, mainly due to the construction of th etconi nection between the colter bracket and the stem, and because of the imperfectionsand variances of the casting and; fromiwearoccasioned thereby after the plow has been in use; i a 4 The present invention aims, primarily, to provide a'colter connection of improvedcon struction which remedies the objections and disadvantages followingfrom constructions heretofore used, and it also aims to provide an improved colter bearing, the advantages of which will be mentioned hereinafter.

As regards the connection between thecol; ter bracket and stem, it is an object of my invention to provide a construction which will enable quick assembling and; insure against lost motion and play between the parts, which Will be strong and durable for all practical purposes and Well-adapted for all conditions and requirements. of service, and which is constructed in such simple manner: as to be capable of production at a comparatively low cost, I l Another object resides in the provision, of a colter connection of the character in mind which permits of a limitedamount of; oscillation for-the colter and is so constructed as to permit assembling of the parts in only their correct relative relation; Other objects and attendantadvantages will be pp i ast ei ven ien ecom -r betterurrderstood by reiierence to the fol? lowing; descriptionwhen considered in connection Withthe accompanyingdrawing, in hich- Figure 11 ifs a side elevation ofa'colter and ss em embecl ingmy impr ve nt and F g- 2, a P an: v e arar y in ion-- fieter ing o h dr w g th W l known pa t des gnat g neral ya mp ise lter di kwa 'br k t. r yelii 6 a tem Tithe upperen lith latt --b nsiad a d o adjustable; a tachm etp e a plo f a in e mannee l jwi l' e no ed that asa depending end 8} ofiseti togthe maie.. 11 ght p rtion a d that is tapered ongi ud n lly r- I The yoke at the junction ofits arrnsQ and-1'1- is s ape p idehead -1 havinga centra1 bore 1-3tapered longitudinally inconformity to-the tapered-f; the, portion 8 In themanw iaotureof these parts the stemv7 andthe tapered: po ti 8 a e fo g d by dies, and heyoke 6 a le castingrwith oo d en al op n ng 3 1 By r ason of 1 hi iconistruct-i m it is: not customary {i105 macihine: finish any surface, since it will be fina-nifoSt; that-the tapered opening or socket 1'3; of; the yoke may be IBQVedJ onto "the stem portion 8 -,s ufa ficiently to secure as tighta joint asxdesired. It will be o d, how v r; th t" t e yoke 6 should-be free-toosjcfillate on'the stern portion 8 so jthat the cojlter willscaster when u ing ai ornjer, 1 bu will be held fi y ag i WQb li-ng an mo emen v tically, such asvrwould be occasioned by a loose flop- .py jointbetween-the colter bracket and stem. l have now. provided. means for securing the celteehead r k 1 m any position on the st 8 to: Whi hhe-H ai e a may be l thutwpe mittins h e i d sci a- 2 01 and tnw ll' em ni est th with the in lu ion. of suita lemeans, p fe ab y a se eollanin' thi c nn cti h yok h ad may he mmed ate y a i stedon h s em p r -i n Tito sat stactoryrwo k ng pos tion; free from, 10 t mo i n, and he n s h po ion y he e oll r, --I emp oy-a et-collar 1 disp sed Q11, the-st m p r 8m pe in ,51 intermed at the en i -th he 12, so ha th et ll r whe -s euredtoth m '8 ill; preve t movemen of: e head e he up or down on the stem. Viewing Fig. l,;it :willbe noted that the bore f-cthe (setcollar also i t pe te o t :fi ithe tap re st m r por- --tienl:&s0;thet when the fastening n t 16 is I ep s of e a entl Bateete i Jul e 7 m it tightened the collar, which closely and fittingly embraces the tapered stem, will be secured thereto in a very substantial manner. In order to limit the extent of oscillation of the yoke 6, I have provided the set collar 14 with a lug 17 disposed in an arcuate opening 18 in the head 12, the oscillation being limited by contact of this lug 17 with the ends 19 of said opening. Viewing Fig. 1, it will be noted that the lug 17 is arranged at the bottom side of set collar 14, and it follows that by reason of this location of the lug 17, there is only one way in which the set collar may be inserted in the opening 15 with its tapered bore in alignment with that of a head 12. Thus in assembling the parts, especially by an unskilled person, it is impossible to place the set collar in position with its tapered opening reversed from what it should be. If after a long period of usage the connection becomes worn, it may be quickly adjusted to take up the wear, simply by loosening the set screw 16 and moving the head 12 and set collar 14 upwardly on the stem.8 and tightening theset screw to hold the arts in the new position.

y improvements also relate to the construction of the colter bearing in which I have aimed to provide a practical and serviceable construction capable of production at a minimum cost. Viewing Fig. 2, it will be seen that a bolt 21 joins the arms 9 and 11 of the yoke and is threadingly engaged in the arm 11, and equipped at its headed end with a suitable bolt look 22. A cone shaped spindle 23 on the bolt 21 is in abutting relation at its ends with the arms ,9 and '11 and clamped in fixed relation thereto by tightening of the bolt 21. The hub 24: of the colter disk 5 revolves freely on the cone spindle 23. It will be noted that there are a number of washers 25 on the bolt 21, between the arm 11 and adjoining end of the cone spindle 23. By means of one or more washers of suitable thickness placed in this manner on the bolt 21, the cone spindle 23 may be clamped rigidly between the arms 9 and 11 and in such relation to the bearing 24 as to obtain the proper cooperative relation between the cone, spindle and hub. That is, due to the inevitable variances in the manufacture of these parts, the cone spindles 23 in different bearings, when properly associated with the colter hub will be located at different positions between the arms 9 and 11; and by use of washers 25 properly placed, the cone spindle may be rigidly secured in the proper position very quickly and easily. It will be obvious that the washers may be removed and placed at either end of the cone spindle as may be required, to take up wear.

The novel features above described enable the production of colters or caster Wheels f h s character at a comparatively low cost, as special provision is made for securing the proper assembly of parts regardless of variances incidental to castings. At the same time the parts are so designed that they give maximum strength and durability in the performance of the work for which they are intended.

It should be understood that while I have illustrated and described but a single working embodiment of my improvements, various changes might be made in the construction and arrangement without depart ing from the spirit and scope of the inven tion as'expressed in the appended claims. With reference to the claims, it should be understood that the terms stem, colter or colter disk are used as representative of either a strictly colter construction on one embodying a caster wheel instead of a colter blade, or any similar construction of this character in which the connection or combination claimed has the same function.

I claim:

1. The combination with a colter disk, of a supporting bracket therefor, a stem having a longitudinally tapered end, said bracket shaped to provide a longitudinally tapered opening adapted to receive said tapered end on the stem, the tapered end of the stem being of suflicient length to permit adjust ment of the bracket to a position in which it fittingly seats on said stem, and a set collar having a tapered opening and adapted to fit said tapered stem and be secured thereto for holding the bracket in operative position thereon.

2. The combination with a colter disk, of a supporting yoke or bracket therefor having a head with a longitudinally tapered opening, a longitudinally tapered stem 105 fitting in said opening, a set collar for holding the yoke head against movement in both directions longitudinally on the stem, and a lug on the set collar closer to one face than to the other and operative between opposed 110 faces on the yoke head for limiting oscillation of the yoke on the stem.

3. The combination with a colter disk, of a longitudinally tapered stem, a yoke carrying the colter, the head of the yoke 115 having a tapered opening adapted to receive said tapered stem and shaped intermediate its ends to provide an opening for the reception of a set collar, and a set collar having a tapered bore and positioned on the tapered 120 stem in said opening in the yoke head for holding said head against movement in opposite directions longitudinally on the stem.

4. The combination with a colter disk, of a longitudinally tapered stem, a bracket 125 supporting the colter disk and having a head provided with a tapered opening adapted to fittingly receive said tapered stem, and a part secured to the stem and adjustable lengthwise thereon and cooperating with said head of the colter yoke or bracket for preventing movement of said head longitudinally on the tapered stem and also for limiting the extent of oscillation of said head with respect to the stem.

5. The combination of a colter yoke of the character described, a colter disk, a single cone spindle interposed between the arms of the yoke, a hub for the colter disk having a longitudinally tapered journal revolubly fitting the cone spindle, and means operative between the arms of the yoke and said cone spindle for rigidly securing the latter to said arms and for adjusting the spindle longitudinally of its axis and with respect to the arms of the yoke for taking up Wear between the spindle and disk hub.

I HARRY R. TRAPHAGEN. 

